yes, you're right. Hall Spars fabricated their spars from start to 81', and then Offshore took most of the spar fabrication from there on.
Offshore told me that they don't make a whole lot of alum masts anymore (mostly carbon), and if they did, they may require a minimum LF.
Still have not verified if they have our mast extrusion from old profiles.
S2 11.0A 36'